CN201096169Y - Electric control high pressure common rail diesel engine gearing system - Google Patents
Electric control high pressure common rail diesel engine gearing system Download PDFInfo
- Publication number
- CN201096169Y CN201096169Y CNU2007200458000U CN200720045800U CN201096169Y CN 201096169 Y CN201096169 Y CN 201096169Y CN U2007200458000 U CNU2007200458000 U CN U2007200458000U CN 200720045800 U CN200720045800 U CN 200720045800U CN 201096169 Y CN201096169 Y CN 201096169Y
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- China
- Prior art keywords
- gear
- crankshaft
- oil pump
- axis
- common rail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a gear transmission system of an electronic control high-pressure common-rail diesel engine, which comprises a crankshaft gear which is arranged on a crankshaft, a gas distribution camshaft gear on a gas distribution camshaft, an oil pump gear on a drive shaft of an oil pump, a drive gear on a power steering pump drive shaft and an idle gear on an intermediate shaft. The utility model is characterized in that the crankshaft gear is a helical tooth shaped internal gear and a helical tooth shaped external gear arranged coaxially, the idler gear comprises a helical tooth shaped internal gear and a straight tooth shaped external gear arranged coaxially, the internal gear of the idle gear respectively meshes with the helical tooth gear on the gas distribution camshaft and the internal gear of the crankshaft gear, the external gear of the idle gear meshes with a drive gear and a common-rail high-pressure oil pump gear installed on a common-rail high-pressure oil pump drive shaft, and the external gear of the crankshaft gear meshes with the oil pump gear. The gear transmission system can meet the requirements of a common-rail fuel system, and has the characteristics of compact spatial layout, reliable work, stable operation and convenient installation and maintenance.
Description
Technical field
The utility model relates to a kind of electric-controlled co-rail diesel engine train of gearings power train, especially relate to a kind of multi-cylinder and cylinder diameter between 80～95mm, the train of gearings power train of the Electrocontrolled high-pressure common rail diesel engine of underneath type distribution cam axle.
Background technique
Along with the continuous reinforcement of environmental consciousness, the emission control regulations of diesel engine are also got over strict.And adopt Electrocontrolled high-pressure common rail fuel injection technology to be considered to improve diesel engine performance and the effective means that reduces exhaust emission.On modern multi-cylinder diesel engine, begun to adopt in a large number high-pressure common rail fuel injection technology.
The driving mode that the timing mechanism of diesel engine front end is commonly used has modes such as band, chain and gear transmission.Cylinder diameter the Light-duty Vehicle of 80～95mm with little cylinder diameter multi-cylinder diesel engine in, generally adopt underneath type distribution cam axle and mechanical type fuel injection system, timing mechanism extensively adopts the gear type transmission system.The structure of this type of motor is compact especially, and preceding end spaces is limited, except will arranging the timing mechanism gear train, also wants fittingss such as placement machine oil pump and servosteering pump driver gear.And the velocity ratio of bent axle and distribution cam axle and mechanical type Injection Pump driving distribution cam axle is 2: 1, and all there is the timing events actuation gear to be marked with the timing mark, set out for the angle that reduces the train of gearings noise, generally all adopt helical gear, whole train of gearings to be row's layout.
But when little cylinder diameter multi-cylinder diesel engine upgrades to the electric-controlled co-rail oil-fired system by the mechanical type fuel injection system,, brought certain difficulty for the cloth setting of pinion unit because the bulk of the structure of little cylinder diameter multi-cylinder diesel engine is limited.
Summary of the invention
Order of the present utility model is provides a kind of requirement that can satisfy common rail fuel combustion system, the timing driving mechanism is not being done bigger structural modification, and can guarantee transmission system reliable operation, operate steadily and the installation, maintenance pinion unit of Electrocontrolled high-pressure common rail diesel engine easily.
The utility model is that the technological scheme that achieves the above object is: a kind of pinion unit of Electrocontrolled high-pressure common rail diesel engine, comprise the crankshaft gear that is installed on the bent axle, valve cam shaftgear on the distribution cam axle, oil pump gear on the oil pump live axle, actuation gear on the power steering pump live axle and the idle gear on the jack shaft, it is characterized in that: described crankshaft gear is the internal gear and the external gear of the helical teeth shape of coaxial setting, idle gear comprises the internal gear of helical teeth shape of coaxial setting and the external gear of straight-tooth shape, the internal gear on the idle gear respectively with the valve cam shaftgear on angular gear and the internal gear engagement of crankshaft gear; The external gear of idle gear and actuation gear and the common rail high pressure oil pump gear engagement that is installed on the common rail high pressure oil pump live axle; The external gear of crankshaft gear and oil pump gear engagement.
Wherein:
The velocity ratio of internal gear on the described crankshaft gear and valve cam shaftgear is 2: 1, and the internal gear on the crankshaft gear velocity ratio of rail high pressure oil pump gear together is 3: 2.
The internal gear on the described crankshaft gear and the velocity ratio of actuation gear are: 1: 1.1～1.3; The external gear on the crankshaft gear and the velocity ratio of oil pump gear are 1: 1.0～1.2;
Train of gearings of the present utility model is divided into inside and outside two toothrows wheel, three groups of gear engagement, the angular gear on the internal gear difference valve cam shaftgear on the idle gear and the internal gear engagement of crankshaft gear need guarantee the port timing of motor to timing mark on the good gear during installation.Outermost then is the external gear and the oil pump gear engagement of crankshaft gear.And the external gear of idle gear and actuation gear and common rail high pressure oil pump gear engagement, three gears of this group are spur gear, can guarantee that the rail high pressure oil pump is not subjected to responsive to axial force altogether, the reliable characteristic of fuel delivery when guaranteeing diesel engine low speed.Because the injection timing of common rail system is to lean on the solenoid valve of electric-controlled fuel injector to open and close realization fully, the external gear of idle gear does not have timing events between the rail high pressure oil pump gear together, can not establish the timing mark on the gear yet, simplifies and installs.So when little cylinder diameter multi-cylinder diesel engine oil-fired system upgrades to common rail system, the utility model can be laid pinion unit in the space of compactness, can not only satisfy the requirement of common rail fuel combustion system, and change less to the body of former mechanical type oil-fired system diesel engine and gear train form and production and processing scheme, has good inheritance, owing to have suitable velocity ratio, can make the power train reliable operation, operate steadily, installation, maintenance is convenient.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the X-X sectional structure schematic representation of Fig. 1.
Wherein: the 1-crankshaft gear, the 1-1-external gear, the 1-2-internal gear, the 2-oil pump gear, the 3-actuation gear, 4-is rail high pressure oil pump gear altogether, 5-idle gear, 5-1-external gear, 5-2-internal gear, 6-valve cam shaftgear.
Embodiment
The pinion unit of Electrocontrolled high-pressure common rail diesel engine of the present utility model as depicted in figs. 1 and 2, comprise the crankshaft gear 1 that is installed on the bent axle, valve cam shaftgear 6 on the distribution cam axle, oil pump gear 2 on the oil pump live axle, actuation gear 3 on the power steering pump live axle, be installed in common rail high pressure oil pump gear 4 and idle gear 5 that common rail high pressure oil pump drives, idle gear 5 of the present utility model comprises the internal gear 5-2 of helical teeth shape of coaxial setting and the external gear 5-1 of straight-tooth shape, 1 of crankshaft gear is coaxial setting and internal gear 1-2 and the external gear 1-1 that is helical teeth shape, internal gear 5-2 on the idle gear 5 respectively with valve cam shaftgear 6 on angular gear and the internal gear 1-2 of crankshaft gear 1 engagement, the internal gear 1-2 on the crankshaft gear 1 and the velocity ratio of valve cam shaftgear 6 are 2: 1, to keep bearing capacity and the noise that reduces train of gearings preferably, need be during installation to timing mark on the good gear.The external gear 5-1 of idle gear 5 then meshes with actuation gear 3 and common rail high pressure oil pump gear 4 respectively, be the spur gear engagement, internal gear 1-2 on the crankshaft gear 1 rail high pressure oil pump gear 4 velocity ratios together is 3: 2, reliable characteristic of fuel delivery when guaranteeing that common rail high pressure oil pump is not subjected to axial force and diesel engine low speed, and the velocity ratio of internal gear 1-2 on the crankshaft gear 1 and actuation gear 3 is 1: 1.1～1.3.The external gear 1-1 of crankshaft gear 1 and oil pump gear 2 engagements are the no timing events of helical teeth engagement, and the external gear 1-1 on the crankshaft gear 1 and the velocity ratio of oil pump gear 2 are 1: 1.0～1.2.
See shown in Figure 1ly, the particular location between each gear of pinion unit of the utility model Electrocontrolled high-pressure common rail diesel engine is of a size of the horizontal equivalent A of crankshaft gear 1 axis and valve cam shaftgear 6 axis at 75～80mm, and perpendicular distance B is 92～96mm; The horizontal equivalent C of crankshaft gear 1 axis and oil pump gear 2 axis is at 70～75mm, and perpendicular distance D is 20～23mm; The horizontal equivalent E of crankshaft gear 1 axis and actuation gear 3 axis is at 35～40mm, and perpendicular distance F is 135～140mm; The horizontal equivalent G of crankshaft gear 1 axis and idle gear 5 axis is 55～60mm, and perpendicular distance H is 80～85mm; The crankshaft gear 1 axis horizontal equivalent I of rail high pressure oil pump gear 4 axis together is 165～170mm, and perpendicular distance J is 122～126mm.
Pinion unit of the present utility model and since to the diesel-engine body of former mechanical type fuel system with Gear train is traditional less with the change of production and processing scheme, and good inheritance is arranged, and can satisfy altogether rail The driving of fuel system and gearratio requirement have compact conformation, and be easy for installation, reliable transmission, fortune The advantage such as turn to steadily.
Claims (4)
1, a kind of pinion unit of Electrocontrolled high-pressure common rail diesel engine, comprise the crankshaft gear (1) that is installed on the bent axle, valve cam shaftgear (6) on the distribution cam axle, oil pump gear on the oil pump live axle (2), idle gear (5) on actuation gear on the power steering pump live axle (3) and the jack shaft, it is characterized in that: described crankshaft gear (1) is the internal gear (1-2) and the external gear (1-1) of the helical teeth shape of coaxial setting, idle gear (5) comprises the internal gear (5-2) of helical teeth shape of coaxial setting and the external gear (5-1) of straight-tooth shape, the internal gear (5-2) on the idle gear (5) respectively with valve cam shaftgear (6) on angular gear and internal gear (1-2) engagement of crankshaft gear (1); The external gear (5-1) of idle gear (5) and actuation gear (3) and the common rail high pressure oil pump gear (4) that is installed on the common rail high pressure oil pump live axle mesh; The external gear (1-1) of crankshaft gear (1) and oil pump gear (2) engagement.
2, the pinion unit of Electrocontrolled high-pressure common rail diesel engine according to claim 1, it is characterized in that: the internal gear (1-2) on the described crankshaft gear (1) is 2: 1 with the velocity ratio of valve cam shaftgear (6), and the internal gear (1-2) on the crankshaft gear (1) velocity ratio of rail high pressure oil pump gear (4) together is 3: 2.
3, the pinion unit of Electrocontrolled high-pressure common rail diesel engine according to claim 1 is characterized in that: the internal gear (1-2) on the described crankshaft gear (1) is 1: 1.1～1.3 with the velocity ratio of actuation gear (3); External gear (1-1) on the crankshaft gear (1) is 1: 1.0～1.2 with the velocity ratio 3 of oil pump gear (2).
4, the pinion unit of Electrocontrolled high-pressure common rail diesel engine according to claim 1 is characterized in that: its horizontal equivalent A of described crankshaft gear (1) axis and valve cam shaftgear (6) axis is at 75～80mm, and perpendicular distance B is 92～96mm; The horizontal equivalent C of crankshaft gear (1) axis and oil pump gear (2) axis is at 70～75mm, and perpendicular distance D is 20～23mm; The horizontal equivalent E of crankshaft gear (1) axis and actuation gear (3) axis is at 35～40mm, and perpendicular distance F is 135～140mm; The horizontal equivalent G of crankshaft gear (1) axis and idle gear (5) axis is 55～60mm, and perpendicular distance H is 80～85mm; Crankshaft gear (1) axis is 165～170mm with the horizontal equivalent I of (4) axis, and perpendicular distance J is 122～126mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200458000U CN201096169Y (en) | 2007-09-14 | 2007-09-14 | Electric control high pressure common rail diesel engine gearing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200458000U CN201096169Y (en) | 2007-09-14 | 2007-09-14 | Electric control high pressure common rail diesel engine gearing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096169Y true CN201096169Y (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200458000U Expired - Lifetime CN201096169Y (en) | 2007-09-14 | 2007-09-14 | Electric control high pressure common rail diesel engine gearing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096169Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748128A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Timing gear housing gear train for common-rail engine |
| CN105179133A (en) * | 2015-10-30 | 2015-12-23 | 广西玉柴机器股份有限公司 | Fuel injection advance angle assembling tool of diesel engine fuel injector |
| CN107420240A (en) * | 2017-08-30 | 2017-12-01 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine drives common rail pump idler gear erecting device |
-
2007
- 2007-09-14 CN CNU2007200458000U patent/CN201096169Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748128A (en) * | 2012-06-14 | 2012-10-24 | 东风朝阳朝柴动力有限公司 | Timing gear housing gear train for common-rail engine |
| CN105179133A (en) * | 2015-10-30 | 2015-12-23 | 广西玉柴机器股份有限公司 | Fuel injection advance angle assembling tool of diesel engine fuel injector |
| CN105179133B (en) * | 2015-10-30 | 2017-12-22 | 广西玉柴机器股份有限公司 | A kind of diesel injector injection advance angle assembly tool |
| CN107420240A (en) * | 2017-08-30 | 2017-12-01 | 河南柴油机重工有限责任公司 | A kind of Design of High Pressure Common Rail Diesel Engine drives common rail pump idler gear erecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Quanchai Engine Co., Ltd. Assignor: Changzhou Diesel Engine Co., Ltd. Contract fulfillment period: 2008.12.1 to 2013.12.1 Contract record no.: 2009340000005 Denomination of utility model: Electric control high pressure common rail diesel engine gearing system Granted publication date: 20080806 License type: Exclusive license Record date: 20090402 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.1 TO 2013.12.1; CHANGE OF CONTRACT Name of requester: ANHUI QUANCHAI POWER CO., LTD. Effective date: 20090402 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |